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25. (1/2 . 50 . 28) + (1/2 . 22/7 . 14 . 14) = 700 + 308 = 1008 cm² 26. (360-240)/360 x 22/7 x 21² = 1/3 x 22/7 x 21 x 21 = 22 x 21 = 462 cm²
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alfinarahmawati98
1) L segitiga + L 1/2 lingkaran = 1/2 x 50 x 28 + 1/2 x 22/7 x 14 x 14 = 50 x 14 + 44 x 7 = 700 + 308 = 1008 2) L = 1/3 x 22/7 x 21 x 21 = 66 x 7 = 462
= 1008 cm²
26. (360-240)/360 x 22/7 x 21² = 1/3 x 22/7 x 21 x 21 = 22 x 21 = 462 cm²
= 50 x 14 + 44 x 7
= 700 + 308
= 1008
2) L = 1/3 x 22/7 x 21 x 21
= 66 x 7 = 462